21210+8413
- Unique Name: 21210+8413MLR 247
- RA: 21 21 00.20
- Dec: +84 13 24.9
- Discoverer: MLR
- Discoverer Number: 247
- Components:
- First year: 1971
- Last year: 2003
- Observations: 5
- First position angle: 306
- Last position angle: 302
- First separation: 1.7
- Last separation: 2.0
- Mag first component: 9.69
- Mag second component: 11.49
- Spectral type: F5
- Primary proper motion RA: 11
- Primary proper motion DEC: -10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +83 609
- Notes: